Update deployment + woodpecker pipeline

.woodpecker.yml

@@ -0,0 +1,14 @@
+pipeline:
+  build:
+    image: nixos/nix
+    environment:
+      NIX_CONFIG: "experimental-features = nix-command flakes"
+    commands:
+      - nix --log-format raw -L build .#docker.x86_64-linux
+  deploy:
+    image: nixos/nix
+    environment:
+      NIX_CONFIG: "experimental-features = nix-command flakes"
+    secrets: [ fly_api_token ]
+    commands:
+      - nix --log-format raw -L run .#deploy

Caddyfile

@@ -0,0 +1,56 @@
+{
+	# fly.io handles HTTPS for us
+	auto_https off
+}
+
+http://static-mat-services.fly.dev {
+	redir https://mat.services/
+}
+
+:8080 {
+	root * /var/www
+	encode gzip
+	file_server
+
+	handle_errors {
+		@404 {
+			expression {http.error.status_code} == 404
+		}
+		rewrite @404 /404.html
+		file_server
+	}
+
+	header {
+		# disable FLoC tracking
+		Permissions-Policy interest-cohort=()
+		# enable HSTS
+		# currently ramping up max-age as per https://hstspreload.org/
+		Strict-Transport-Security max-age=604800; includeSubDomains
+		# disable clients from sniffing the media type
+		X-Content-Type-Options nosniff
+		# clickjacking protection
+		X-Frame-Options DENY
+		# keep referrer data off of HTTP connections
+		Referrer-Policy no-referrer
+		# content security policy
+		# style-src 'unsafe-inline': syntax highlighting in codefences
+		# sandbox allow-popups: enable target="_blank" links to open in new tabs
+		Content-Security-Policy "default-src 'none';
+      img-src 'self';
+      style-src 'self' 'unsafe-inline';
+      font-src 'self';
+      form-action 'none';
+      frame-ancestors 'none';
+      base-uri 'none';
+      upgrade-insecure-requests;
+      sandbox allow-same-origin allow-popups allow-popups-to-escape-sandbox"
+	}
+
+	# caching
+	route {
+		header /style/* Cache-Control max-age=31536000, immutable
+		header /image/* Cache-Control max-age=31536000, immutable
+		header /font/* Cache-Control max-age=31536000, immutable
+		header Cache-Control max-age=180
+	}
+}

flake.nix

@@ -21,22 +21,9 @@
       systems = inputs.nixpkgs.lib.systems.flakeExposed;
       perSystem = { config, self', inputs', pkgs, system, ... }:
         let
-          optimize-images = pkgs.writeShellScriptBin "optimize-images" ''
-            shopt -s globstar nullglob
-            ${pkgs.scour}/bin/scour -i static/image/_favicon.svg -o static/image/favicon.svg
-            for image in content/**/_*.png static/image/**/_*.png; do
-              path=$(dirname $image)
-              file=$(basename $image)
-              newimage=$path/''${file:1}
-              echo "optimizing $image"
-              ${pkgs.pngquant}/bin/pngquant --quality 80-90 -f -o $newimage $image
-              oldsize=$(stat --format=%s $image)
-              newsize=$(stat --format=%s $newimage)
-              pct=$(${pkgs.bc}/bin/bc <<< "scale=1; $newsize * 100 / $oldsize")
-              echo "size went from "$(($oldsize / 1024))"KB to "$(($newsize / 1024))"KB ("$pct"% as large as original)"
-            done
-          '';
-          inherit (pkgs.callPackage ./fonts.nix { }) copyFonts linkFonts;
+          inherit (pkgs) callPackage;
+          optimize-images = callPackage ./nix/optimize-images.nix { };
+          inherit (callPackage ./nix/fonts.nix { }) copyFonts linkFonts;
         in
         {
           packages.default = with pkgs; stdenv.mkDerivation {
@@ -52,7 +39,10 @@
               optimize-images
               zola build
             '';
-            installPhase = "cp -r public $out";
+            installPhase = ''
+              cp -r public $out
+              cp Caddyfile $out
+            '';
           };
           devShells.default = with pkgs; mkShell {
             packages = [ flyctl optimize-images zola ];
@@ -61,19 +51,10 @@
               ln -snf "${theme}" "themes/${themeName}"
             '' + linkFonts;
           };
-          packages.docker =
-            let
-              site = self'.packages.default;
-            in
-            pkgs.dockerTools.buildLayeredImage {
-              name = site.pname;
-              tag = site.version;
-              contents = [ site pkgs.caddy ];
-
-              config = {
-                Cmd = [ "caddy" ];
-              };
-            };
+          packages.docker = callPackage ./nix/docker.nix { site = self'.packages.default; };
+          apps.deploy.program =
+            let deploy = callPackage ./nix/deploy.nix { dockerImg = self'.packages.docker; };
+            in "${deploy}/bin/deploy";
         };
     };
 }

nix/deploy.nix

@@ -0,0 +1,9 @@
+{ lib, docker, flyctl, formats, writeShellScriptBin, dockerImg }:
+
+writeShellScriptBin "deploy" ''
+  set -euxo pipefail
+  export PATH="${lib.makeBinPath [(docker.override { clientOnly = true; }) flyctl]}:$PATH"
+  archive=${dockerImg}
+  image=$(docker load < $archive | awk '{ print $3; }')
+  flyctl deploy -i $image
+''

nix/docker.nix

@@ -0,0 +1,11 @@
+{ dockerTools, caddy, site }:
+
+dockerTools.buildLayeredImage {
+  name = site.pname;
+  tag = site.version;
+  contents = [ site caddy ];
+
+  config = {
+    Cmd = [ "${caddy}/bin/caddy" "run" "-config" "${site}/Caddyfile" ];
+  };
+}

nix/fonts.nix

@@ -61,13 +61,6 @@ rec {
     font = fontDerivation fontSrc;
   };
   fonts = map fetchFont fontSrcs;
-  copyFont = { font, name, ... }: ''
-    mkdir -p static/font/${name}
-    cp -r ${font}/* static/font/${pathName name}
-  '';
-  linkFont = { font, name, ... }: ''
-    ln -snf "${font}" static/font/${pathName name}
-  '';
   mkFontCss = { font, name, fileName, cssVar }:
     let path = pathName name; in ''
       @font-face {
@@ -109,10 +102,18 @@ rec {
     '';
   fontCss = lib.concatMapStrings mkFontCss fonts;
   fontCssFile = writeText "fonts.css" fontCss;
+  copyFont = { font, name, ... }:
+    let path = pathName name; in ''
+      mkdir -p static/font/${path}
+      cp -r ${font}/* static/font/${path}
+    '';
   copyFonts = (lib.concatMapStrings copyFont fonts) + ''
     mkdir -p static/style
     cp ${fontCssFile} static/style/fonts.css
   '';
+  linkFont = { font, name, ... }: ''
+    ln -snf "${font}" static/font/${pathName name}
+  '';
   linkFonts = ''
     mkdir -p static/font
   '' + (lib.concatMapStrings linkFont fonts) + ''

nix/optimize-images.nix

@@ -0,0 +1,17 @@
+{ bc, pngquant, scour, writeShellScriptBin }:
+
+writeShellScriptBin "optimize-images" ''
+  shopt -s globstar nullglob
+  ${scour}/bin/scour -i static/image/_favicon.svg -o static/image/favicon.svg
+  for image in content/**/_*.png static/image/**/_*.png; do
+    path=$(dirname $image)
+    file=$(basename $image)
+    newimage=$path/''${file:1}
+    echo "optimizing $image"
+    ${pngquant}/bin/pngquant --quality 80-90 -f -o $newimage $image
+    oldsize=$(stat --format=%s $image)
+    newsize=$(stat --format=%s $newimage)
+    pct=$(${bc}/bin/bc <<< "scale=1; $newsize * 100 / $oldsize")
+    echo "size went from "$(($oldsize / 1024))"KB to "$(($newsize / 1024))"KB ("$pct"% as large as original)"
+  done
+''